Paul hagemann and heinrich pasler



(No Model.) I I P. HAGEM-ANN & H. PASLER. SPARK GATGHER.

No. 603,378. Patented May 3', 1898.

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n42 NORRIS PETERS (n. mo'murnm. w'aumm'ou. n. c.

UNITED STATES PATENT OFFICE.

PAUL I-IAGEMANN AND HEINRICH PASLER, OF STETTIN, GERMANY.

SPARK-CATCHER.

SPECIFICATION forming part of Letters Patent No. 603,378, dated May 3,1898.

Application filed February 25, 1897. Serial No. 625,066. (No model.)

1'0 all whom it may concern: Y

Be it known that we, PAUL HAGEMANN and HEINRICH PASLER, residents ofStettin, in the damage.

7 suitable place in the smoke-stack S a plate A,

which is provided with a system of short pipes B. These pipes (which maybe made of old boiler-tubes) are disposed parallel in the simplest way.It is, however, not necessary that these pipes be round. They may be aswell of any other form, and be bent or fastened in conical form in theplate A. This pipe system, (pipe-sieve,) which must have an open passageat least as large as that of the smokestack, divides the stream of theescaping prod nets of combustion, and the several branches of the sametake the direction of the pipes through which they pass.

A certain number of the sparks carried off by the gases of combustionwillbe, caught and extinguished by this sieve. Those sparks, however,which might not be caught by this sieve encounter a second pipe-sieve AB which is generally of the same construction as A B, but are displacedin such a way that the opening of each pipe of the system A B encountersa closed surface of the system A B The sparks carried by the gasesof'combustion when escaping from the sieve A follow at first thedirection given to them by the pipes through which they have passed, engage themselves between the pipes of the system B and are caughtby theplate A The light gas, however, describes a slight curve and arrives inthe pipes B through which it escapes. The extinguished sparks arecollected in the chamber K.

Some few sparks which might find their way through the pipes B arethrown against the plate 0 and collected in the chamber K In case thecombustible used produces but few sparks the plate 0 may be replaced bya wire sieve, and in this case the gas of combustion passesthe'smoke-stack nearly without deviation from the direction of the axisof the same. The pipe-sieve A B is adjustable, so that the distancebetween the two sieves may be regulated according to the kind of sparks.Dimensions of the pipes have also to be adapted to the kind ofcombustion and the products of the same.

If the formationof sparks is very strongas, for instance, in the case ofsawdust or pulverulent brown coal being used as combustibles it maybecome necessary to arrange a third sieve, which has also to be fittedin in such a way that the openings of its pipes do not meet the openingsof the pipes of the lower sieve. In locomotives these pipe-sieves may bearranged in the smoke-chamber below or around the exhauster and insuitable distance instead of placing them' in the smoke-stack.

We claim-' In combination with the smoke-stack of inverted-cone shape,the pipe S extending up within the same and having an enlarged closedhood, a series of pipe-sections passing through the hood and forming aplurality of dischargeopenings equaling in total area the area of thepipe S, the partition above said hood having a plurality ofpipe-sections arranged out of line with the lower pipe-sections, thecontracted opening in the upper end of the stack .and thedeflector-plate beneath the same, substantially as described. w

- In witness whereof we have hereunto set our hands in presence of twowitnesses.

PAUL HAGEMANN. HEINRICH PASLER.

